Handlebar



FIG. 1 is a left, front perspective view of my new handlebar;

FIG. 2 is a front elevational view thereof, shown attached to a two-wheeled vehicle;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top elevation view thereof; and,

FIG. 7 is a bottom elevation view thereof.

The broken lines shown in the drawing represent environmental structure that form no part of the claimed design. 

I claim the ornamental design for a handlebar, as shown and described. 